Experimental study of mode selection in shallow-water sea

被引：7

作者：

Grinyuk, A. V. ^{[1
]}

Burdukovskaya, V. G. ^{[2
]}

Zverev, V. A. ^{[2
]}

Kravchenko, V. N. ^{[1
]}

Kovalenko, V. V. ^{[2
]}

Luchinin, A. G. ^{[2
]}

Malekhanov, A. I. ^{[2
]}

Trofimov, A. T. ^{[1
]}

Trusova, O. I. ^{[1
]}

Smirnov, I. P. ^{[2
]}

Stromkov, A. A. ^{[2
]}

Khil'ko, A. I. ^{[2
]}

机构：

[1] Russian Acad Sci, FGUP NII ATOLL, Nizhnii Novgorod 603950, Russia

[2] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603950, Russia

来源：

ACOUSTICAL PHYSICS | 2012年 / 58卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

acoustic sounding; coherence; hydroacoustic emitter arrays; pulses; filtration matching; shallow sea; ACOUSTIC TOMOGRAPHY; FIELD;

D O I：

10.1134/S1063771012020054

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The possibilities of matching low-frequency underwater sound pulses to the parameters of an oceanic waveguide are considered. The objective is to optimize the system of few-mode tomographic observation in a shallow-water sea. Experimental data are analyzed for two methods of selecting the low-frequency fewmode pulses propagating in a shallow-water sea. The first method excites probe pulses by vertically elongated arrays, with spatial filtering after vertical or horizontal arrays receive the pulses. The second method is based on exciting broadband signals with linear frequency modulation by a single transmitter. The selection of the few-mode signal is performed by time strobing the signals at the output of the matched filter after a horizontal array receives the pulses. The distance between the sound sources and receiving systems varied from 10 to 300 km.

引用

页码：288 / 300

页数：13

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